78874040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6551}}^1$

素因数の和:6612

約数の個数: 64

約数和(自身を含む): 207567360

約数和(自身を除く): 128693320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 6551, 12040, 13102, 26204, 32755, 45857, 52408, 65510, 91714, 131020, 183428, 229285, 262040, 281693, 366856, 458570, 563386, 917140, 1126772, 1408465, 1834280, 1971851, 2253544, 2816930, 3943702, 5633860, 7887404, 9859255, 11267720, 15774808, 19718510, 39437020, 78874040]

約数ペア:

[(1, 78874040), (2, 39437020), (4, 19718510), (5, 15774808), (7, 11267720), (8, 9859255), (10, 7887404), (14, 5633860), (20, 3943702), (28, 2816930), (35, 2253544), (40, 1971851), (43, 1834280), (56, 1408465), (70, 1126772), (86, 917140), (140, 563386), (172, 458570), (215, 366856), (280, 281693), (301, 262040), (344, 229285), (430, 183428), (602, 131020), (860, 91714), (1204, 65510), (1505, 52408), (1720, 45857), (2408, 32755), (3010, 26204), (6020, 13102), (6551, 12040)]